521764962412 has 12 divisors (see below), whose sum is σ = 913680456976. Its totient is φ = 260713403280.

The previous prime is 521764962391. The next prime is 521764962457. The reversal of 521764962412 is 214269467125.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42262539 + ... + 42274882.

Almost surely, 2^521764962412 is an apocalyptic number.

It is an amenable number.

521764962412 is a deficient number, since it is larger than the sum of its proper divisors (391915494564).

521764962412 is a wasteful number, since it uses less digits than its factorization.

521764962412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84538968 (or 84538966 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The spelling of 521764962412 in words is "five hundred twenty-one billion, seven hundred sixty-four million, nine hundred sixty-two thousand, four hundred twelve".